WooCommerce product - Displaying post_content value of product object
As you can see your $product is an object that contains a post object (and not arrays). So you could try one of this:
$product_content = $product->post->post_content;echo $product_content;// or directly// echo $product->post->post_content;or this one should work too:
$_product = $product->post;echo $_product->post_content;